WWI: Modern Warefare

Soldier wearing a gas mask.

Poisonous gas was very dangerous and caused many casualties. As a result this new weapon could be tactically placed for enemies trying to flank your troops. It was a slow and painful experience the soildiers would face if caught in the gas.

http://www.firstworldwar.com/weaponry/gas.htm

Machine guns were used to suppress fire upon ones enemy.

The machine gun was used primarily to lay down suppressive fire. Most of the time machine guns needed 4-6 men to operate it. Also on average a machine gun could spit out anywhere between 400-600 rounds a minute.

Tanks were mainly used to push threw enemy line or destroy them. A tank is a heavily armed vehicle with strong but not inpenitrable armor. It had a conons and machine guns posted.

Submarines were used to search below the waters either near or past enemy lines. The submarine was able submerge under water for long periods at a time, and when need be could rise to the surface. The sub,arise could tactically hit and destroy ships using their torpedoes.